Experimenting with a self contained pump action airsoft using an air cylinder and springs to provide the power. Using a 1 1/16" bore X 2 " stroke cylinder.

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Cylinder is on the top and facing forward which means it needs to be pushed forward to compress springs rather than backwards. Will be self loading if I can make it work, FPS is not critical as I want to use it indoors

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Neat idea to have the cylinder compress forward instead of back, I've seen this in Nerf guns but never an airsoft. Seems like it would be good for a compact bullpup as you seem to have.

The original version of the Silverback SRS A1 cocked the piston on the forward stroke but most users didn't like it, they came out with a conventional rear cocking piston conversion kit shortly after and eventually phased out forward cocking altogether.

hectmarr wrote:You have to make many weapons, because this field is long and short life

More done, linkage from charge handle to rear to be made and trigger needs a return spring, power seems low but that's what I wanted. The springs are about as much as I can push, rearward charging is definitely needed for more spring tension.

You see a very good construction, (as always, in your projects). It is nice to see someone who has and carries out a project from these sides. I congratulate you, and I look forward to new things from you.

Trying to make a different/better system for the spring charge/loading handle, this looks much better than the sliding handle I had at the front. The handle would jam very easy because it was trying to twist as it was sliding, the new handle takes much less effort and will be more compact. Still a work in progress